Jiali Khan

Jiali Khan (died 634) was Khagan of the Eastern Turkic Khaganate from 620 to 630, succeeding Chulou Qaghan. He was conquered by the Tang dynasty after they backed his nephew Tuli against him in a civil war.

Biography
Jiali Khan was the son of Yami Qaghan and his Tuyuhun wife, and, after the death of his brother Chulou Qaghan, he succeeded him as Khagan of the Eastern Turkic Khaganate. In 626, he invaded Tang China with an army of 100,000 nomadic cavalry and penetrated up to ten miles from the capital of Chang'an, where he was bribed to retreat. In 627 AD, however, he was faced with several tribal rebellions back at home and was forced to return, sending his nephew Tuli to defeat the rebels. When Tuli failed, Jiali had him flogged and imprisoned for ten days, but he escaped to Emperor Taizong of Tang and persuaded the Tang to intervene in the civil war. Jiali was defeated and captured, and he was sent to Chang'an to live out his days as a political hostage; the Turkic chieftains then made Taizong "Tengri Khagan". Jiali died in 634.